The absence of any active CDC Level 4 Travel Health Notices supports the 77.5% market-implied probability against issuance by December 31, 2026. Current advisories remain limited to Level 2 for widespread polio circulation across 32 countries and Level 1 for dengue in 16 others, based on confirmed case surveillance from CDC and WHO data. The recent Andes virus hantavirus cluster on a cruise ship triggered only a targeted Health Alert Network notice and low-level emergency activation, with no evidence of sustained domestic transmission or extreme-risk thresholds that would justify “Avoid All Travel” status. Historical patterns show Level 4 notices require novel pathogens or uncontrolled epidemics exceeding current epidemiological indicators and model consensus, none of which appear imminent before year-end. Ongoing monitoring of respiratory and vector-borne threats will determine if any rapid escalation occurs.